High-Temperature 250°C Metal Glue Probe Position Sensor
1. Why You Need It
Adhesive glue pots and hot-melt application lines hold glue at temperatures up to 250 °C — far beyond the rating of standard level probes. This high-temperature metal glue probe position sensor is built for 250 °C service, with a Teflon probe and aluminum alloy control box that withstand the heat. It provides fast, reliable glue level and position detection in adhesive pots, protecting against dry-run and overflow in demanding adhesive applications.
2. Working Principle
The sensor detects the glue level or probe position through contact sensing at the Teflon probe, switching its normally-open/normally-closed output when the medium reaches the set point. The Teflon probe resists both heat and adhesive build-up, while the aluminum alloy control box and IP65 shell protect the electronics. A <1 s response time and overload protection ensure dependable operation in high-temperature adhesive service.
3. Key Advantages
- 250 °C high-temperature rated
- Built for adhesive glue pots
- Teflon probe resists adhesion
- Aluminum alloy control box
- IP65 shell protection
- DC 24 V supply
- <1 s response time
- Normally open / closed output
- Overload protection
- 43 mm probe length
Common Pain Points & Solutions
| Problem | Conventional Issue | Our Solution | Result |
|---|
| High-temperature glue | Standard probes overheat | 250 °C rated design | Reliable at 250 °C |
| Adhesive build-up | Probes foul with glue | Teflon probe | Adhesion-resistant detection |
| Dry-run / overflow | No glue pot monitoring | Position/level switch | Prevents dry-run |
| Fast process response | Slow sensors | <1 s response | Real-time level control |
Application Cases
Industry: Adhesive
Application: Adhesive glue pot level
Medium: Hot glue / adhesive
Pressure Range: Atmospheric
Operating Temperature: up to 250 °C
Installation Environment: Glue pot
Customer Challenge: Detect glue level
Previous Problem: Standard sensor failure
Solution: 250°C probe sensor
Installation Location: Glue pot
Result: Reliable glue level
Industry: Packaging
Application: Hot melt application line
Medium: Hot melt adhesive
Pressure Range: Atmospheric
Operating Temperature: 150 to 250 °C
Installation Environment: Packaging line
Customer Challenge: Adhesive position detection
Previous Problem: Sensor overheating
Solution: High-temp probe sensor
Installation Location: Applicator
Result: Continuous adhesive detection
Industry: Assembly
Application: Bonding adhesive tank
Medium: Adhesive
Pressure Range: Atmospheric
Operating Temperature: 150 to 250 °C
Installation Environment: Assembly line
Customer Challenge: Glue level in tank
Previous Problem: Manual checking
Solution: Teflon probe sensor, NO/NC
Installation Location: Adhesive tank
Result: Automated level monitoring
Industry: Woodworking
Application: Edge banding glue pot
Medium: Hot melt glue
Pressure Range: Atmospheric
Operating Temperature: 150 to 250 °C
Installation Environment: Woodworking line
Customer Challenge: Glue pot level monitoring
Previous Problem: Probe fouling
Solution: 250°C glue probe sensor
Installation Location: Edge bander glue pot
Result: Reliable glue level
Technical Specifications
| Specification | Value |
|---|
| Product Type | High-temperature glue probe position sensor |
| Temperature Rating | 250 °C |
| Probe Material | Teflon |
| Probe Length | 43 mm |
| Control Box | Aluminum alloy |
| Shell Protection | IP65 |
| Supply Voltage | DC 24 V |
| Response Time | <1 s |
FAQ
Q: What is a high-temperature glue probe position sensor?
It is a level/position sensor with a Teflon probe rated for 250 °C, designed to detect the level or position of molten glue in adhesive glue pots and hot-melt application lines. It survives the high temperatures that would damage standard sensors.
Q: Can it handle 250 °C?
Yes. It is rated for 250 °C high-temperature service, making it suitable for adhesive glue pots and hot-melt lines where the glue is held at elevated temperatures.
Q: Why is Teflon used for the probe?
Teflon (PTFE) resists high temperature and prevents adhesive build-up on the probe. For molten glue, this non-stick property keeps the sensor accurate and reduces cleaning requirements.
Q: What is the response time?
The response time is less than 1 second, providing real-time level detection for glue pots and application lines. This fast response supports accurate feed control and dry-run protection.
Q: What output does it provide?
It provides a normally-open / normally-closed output, which can be configured to match the control logic of the adhesive application equipment.
Q: What protection does it have?
It has IP65 shell protection against dust and water jets, plus overload protection. The aluminum alloy control box provides additional durability in the high-temperature environment.
Q: What power supply does it need?
It operates on DC 24 V, the standard for industrial control systems. This integrates directly with glue pot and packaging line controls.
Q: How is it installed?
The Teflon probe (43 mm long) is installed into the glue pot or adhesive tank, with the aluminum alloy control box mounted nearby. The output connects to the machine's PLC or relay.
Q: What media does it detect?
It detects molten glue, hot melt adhesive and other high-viscosity media at elevated temperature. The Teflon probe handles the stickiness and heat of these materials.
Q: Where is it used?
It is used in adhesive glue pots, hot melt application lines, bonding adhesive tanks and edge banding glue pots. It provides reliable high-temperature glue level and position detection.
